GCHQ - 02 - An Interesting Move

Story by warmghost on SoFurry

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#3 of GCHQ

Core story concepts: prehensile cock, prehensile travel, hyper, cock growth, functional hyper, solo, male.

Complete list of potential tags: cocksteed cock_steed cock_slithering cock_driving cock_travel cock_surfing cock_growth prehensile_slithering prehensile_driving prehensile_travel prehensile_riding prehensile_surfing prehensile_cock prehensile functional_hyper hyper hyper_growth male

Narrator's note: You may soon discover a kink you didn't know you had. After all it didn't exist anywhere on the internet until now. Even Sam didn't know yet. Feel free to comment with questions or tag suggestions. There is more to come.


GCHQ - 02 - An Interesting Move

by warmghost

Core story concepts: prehensile cock, prehensile travel, hyper, cock growth, functional hyper, solo, male.

Complete list of potential tags: cocksteed cock_steed cock_slithering cock_driving cock_travel cock_surfing cock_growth prehensile_slithering prehensile_driving prehensile_travel prehensile_riding prehensile_surfing prehensile_cock prehensile functional_hyper hyper hyper_growth male

Narrator's note: You may soon discover a kink you didn't know you had. After all it didn't exist anywhere on the internet until now. Even Sam didn't know yet. Feel free to comment with questions or tag suggestions. There is more to come.


So many new feelings and yet it all still felt somehow natural.

Sam had been having the time of his life, exploring everything his strange body was becoming capable of. Sam had barely been able to go to work with his self control gone out the window and his curiosity getting the best of him.

A great feeling of excitement was building for yet another long weekend of exploring. Meanwhile by the end of the day he could barely walk normally, feeling his right shoe and foot getting slimy. Sam had coiled his long prehensile horsecock around his leg as usual, letting the flare hang just above his ankle while still hidden by his pants. As his excitement built up, pre-cum started drooling into his sock and was making walking uncomfortable. Good thing it was the weekend.


As Sam ripped his clothes off and plopped onto the couch at home, he took a glance at his member. In the past few weeks his growing prehensile cock had sprouted a flare, the texture of his skin had shifted, and the color darkened. The light skin transitioned into deep black, and into to what now hung heavily from his crotch, Sam knew it was a horsecock. A big, controllable growing horsecock. His shiny black ball sac drooped down as Sam took his clothes off, finally feeling the fresh air around the base of his recently changed equipment. The medial ring and flare pulsing visibly as Sam's heart rate kicked up. "This is me." Sam said out loud to no-one, "and this is mine." He wiggled his dark prehensile member around almost as if to make it wave back at him. What would have been worrying to a normal person almost didn't surprise Sam at this point. He had grown up this long with weird experiences coming from his crotch and if anything this new transformation was nothing. Sam couldn't be happier with what was happening to his body. This slow change that had taken over the area had delivered new feelings, new sights, new smells. He loved it, and he was hornier than ever. Sam had already spent multiple days taking selfies and photos, realizing how lucky he must be to have randomly developed such a gorgeous appendage. Weeks had gone by, and with each additional step dabbling in a new pleasure Sam seemed to be unlocking new facets of sexual power hidden in his biology.

Sam had spent the past several weeks experimenting, playing and masturbating. What once was his daily session playfully using his prehensile "front tail" for fun and arousing things, had now become consumed by pent up potency. He learned how to tie garbage bags onto the end of his flare so he could cum as much as he needed. He learned how to control his growth abilities better. He learned how to squirt precum at will by pulsing the muscles along his shaft... and best of all he learned how to maintain the right size if he still wanted to get hard. Sam loved walking around with his penis growth held at roughly a meter in length and rock hard. He loved how much it got in the way of everyday tasks, how heavy it felt, how much pre was dripped all over his floors. His balls swaying as he tried to walk. As much as he loved using his cock's muscles, it felt great to rub his hands along and feel the stiff thickness, how much body heat radiated off of it. It felt like the perfect dream size, and Sam wished he could live every day this way. "What if I just got an online job and stayed this way?" He thought... "Growing bigger feels so nice... but then I just get stuck." Sam had written lists brainstorming ways he could live the lifestyle he wanted. He knew changes needed to come, but wasn't sure what change. Meanwhile the next item to experiment with was set for tonight. Tonight was growth night, and he was excited.


4AM. Sam woke up to darkness, soaked in sweat and musk. As he opened his eyes, he remembered.

"Fuck it happened again." Sam knew what he was about to see. He must have grown out of control again. "Fuck!" He put his arms under his chest, and pushed himself up to sit. Sure enough, the sweaty and sticky bed he had been laying on was his own member. His legs straddled the base, and his huge testicles stuck out behind him. "I bet I'm stuck again. Shit shit..." Jutting out from his crotch was a mass as thick as two utility poles strapped together. He looked up in the darkness to find yet another incredible discovery. His penis reached from where he was in the corner of the living room, all the way to the other side, through the door and into the kitchen. It must have been 6 meters long at least. The trashbag Sam had attached to the end of his flare had come loose. The wooden cupboards and walls in the kitchen had a reflective, glistening and shiny property to them. Sam knew it was probably his cum. "What a fucking mess." Sam had passed out from the pleasure of growth, once again.

"Computer, turn on the downstairs lights." "Okay Sam, I turned Downstairs Lights on."

As the light faded on, Sam sat stunned. His cock was so thick his knees only had to bend a little bit for his feet to be against the ground. Sam was sitting on top of the base of his penis as if it was a motorbike. He looked back into the distance and tried to lift the front of his shaft off the floor. The sound of flesh peeling off a sticky tile floor could be heard. Sure enough, the kitchen floor must have been coated in his dry seed. He felt his muscles pulse upward as it came loose, causing Sam to shudder with pleasure. Well this did certainly feel amazing, being this huge. "Well, in truth, my body feels good I suppose!" Sam blurted. Sam placed his hands along the huge member in front of him, realizing how powerful it felt. "It's like a tree trunk, but it's me. I can just, do this. Maybe I just need to find a way to be this huge and not make a mess?" He thought.

This was ridiculous, and yet he knew it was what he wanted. He was so large he couldn't move, and yet Sam couldn't help but to feel a certain peace. "Just sit on top of my wonderfully huge rod of pleasure and let loose..." he muttered. Sam sat on his pulsing leviathan for 5 minutes just staring at it, thinking about how long it might take for him to get unstuck. He was pinned, and there was probably nothing he could do. "I'm just this guy" he said into his empty house. "With this... amazing controllable appendage..." Sam felt as powerful and turned on as he was disappointed and bored. "Why can I do this? Why do I do it? What else am I supposed to do? There must be more. There must be a better way. Maybe I can just..." Could he stand up? "That's right! Huge or not, I can move it!" Sam wiggled the muscles along his massive shaft lightly, feeling it quiver and rock side to side while he laid on top. "So... powerful..."

Sam was so excited he tried to stand and immediately fell back on his shaft with a thud, realizing the weight from his crotch was so great it kept him pinned firmly on the floor. "Oh right, uhh..." Sam looked around, his feet still against the ground. Sam reached his arms as far as he could down the sides of his shaft, between his legs as the thick mass pushed against them, trying to understand the scale he was working with. Concentrating, he slowly pushed up with his feet, and his shaft at the same time. "yes yes here we go!" Sam said, as he very slowly rose up to finally stand. Putting a hand against his cock he realized how incredibly heavy it must have been. If it were not for the strange muscular abilities his penis possessed, he probably would've been completely stuck. Here he was, standing steadily now. His cock was holding him in this position and if he let go he would surely be pulled back down and fall.

Sam reached his right hand toward the nearby window sill hidden behind the curtain for balance. He just stood there, as several minutes passed. Sam knew what was next, and he was already starting to lose his breath just thinking about it. Admittedly what he was about to try was not a new idea to him, but he'd never been this big before. It felt powerful enough for Sam to gain the confidence, as he took a deep breath and began to lean his weight against his shaft.

"Okay. Okay... Okay... Here we go." Sam's heart was still racing as he began to shift his body weight, still being held standing up by his cock. "Okay.... Now... Good..." Sam blurted in an attempt to make what was happening seem calming when in reality he was barely able to contain his stable composure. "Okay now... just a little bit there.." Sam put his free hand on his shaft wanting to feel the muscles and know he was in control. He leaned forward more and more, until finally it happened. Sam's feet lifted off the ground.

"Oh my... ohhh my... woah there..." still breathing hard, he tilted himself forward even more, until finally after a full minute of flailing and nervous balancing... Sam was suspended in the air by his penis. "Oh wow. OH WOW.." His back made an audible stretching snap. Sam was using every muscle he could think of to maintain this new posture. As he thought over the feeling, the knowledge of which muscles to hold in a way he never had before, he slowly tested the waters even further. Slowly... he reached his arms up into the air, starting to go above his head. "Steady... Steeeaaddyyy..." Jitters and jolts went down his body and shaft as he frantically tried to stay balanced. It was happening. It looked as though Sam was flying in a superhero pose, suspended in the air by his monstrous muscular horse shaft.

"More." said Sam. "MORE." He slowly bobbed his body up and down, learning to twist around, and hang his body off the end. It felt surprisingly comfortable for his body to be held up in the air off his penis. The mass running along the ground was great enough to keep him stable and Sam was able to comfortably float himself around. His huge testicles hanging barely above the ground.

"More. More. More... There must be more to unlock... " Sam was nearly in tears. He felt like a superhero, it felt like flying. I can do this. I can do anything. I have control! My big slithery horse shaft!"

Sam eyes went wide. "W-Wait..."

"... slither..."

How had he not thought of...


There was another thud. This time the flare at the end of Sam's penis had thrown itself sideways into the kitchen wall. "Owww fuck! Okay enough with trying to find a rhythm." Sam yelled into his empty house. "Let's just... pull." Sam focused on the end of his shaft, lifting the huge flare and some length with it around the corner of the island counter in the kitchen. He pushed the end section of his shaft against the back side of the counter, causing the entire mass and Sam himself to be pulled forward. "AHHH HOLY FUCK" Sam yelped, feeling the entire length of his shaft shift along the living room carpet. Sam had pushed and slid his prehensile member along surfaces a lot in the past, but this new feeling was off the chart. He had never been this huge. Sam panted heavily. "Wow what a feeling!" He had pulled himself forward by maybe a few centimeters along the floor. He could barely catch his breath with excitement. Time to try again. And Again.

Sam was back to straddling the base of his penis as if riding a motorcycle. He had to focus. He wiggled his prehensile cock all around, rocking from side to side. "Focus even more." He pushed it around. More and more. After several minutes of thrashing his huge leviathan around the living room, finally his cock was splayed across the room in an "S" shaped curve. "Sssserpentine" Sam slowly spoke. "Remember from biology. Serpentine." Sam's shaft visibly pulsed along its length. "Push from one side. Just one side. Not the other. One side." Sam repeated these words as he focused. "More. Okay good. More. Okay good." Tears ran down his face as he began to cry, overwhelmed with pleasure. He was beginning to slither, using his cock.

Slowly, he inched forward. The muscles visibly bulged as his penis performed its command, pushing and pulling against the curves of motion. Sam was now nearly laughing, tears still pouring out as he then closed his eyes to think of only what he was feeling and doing. "THIS. THIS IS..." The kitchen was closer now. "THIS..." There was still more. Sam held his hands firmly against his shaft, his powerful member, his snake, his vehicle. Still concentrating. Still pushing on one side, then the other, then the other. The mind boggling muscular control he had. ".... this feels.." Sam opened his eyes. He was in the kitchen. "... SO NATURAL..."

Sam couldn't believe how smooth and comfortable it felt despite the massive pulses of pleasure coming from the ground and weight along the underside of his penis. His balls had easily dragged behind him, creating additional stimulation. Sam started looking all around, wondering how the trip worked so well. He looked along the shaft, and then realized something he hadn't before. The huge waist-height flare at the end of his shaft had pre-cum all around it on the floor. In fact, his entire shaft did. "Was I... pre-cumming? THIS MUCH?" The kitchen had been coated before but now the hallway he had aimed into also had its floor soaked. "Wait so... I must have been doing that the entire..." Sam heard a splash. The sound was familiar, because he had been hearing it all along and never thought about it. His cock had shot precum all along the path he was on, now coating the underside of his shaft. Without even thinking about it, Sam had pre-lubricated the path he slithered on.

Then something even shinier than the floor itself caught his eye. It was like a glistening rock in a creek bed. Sam rocked his body down toward the floor, reaching his arm out far to grab the object. It was thin and credit card sized. It almost looked like cheap decorative plastic. Was this from something that fell off the counter during his mess-making? Sam held the thin plasticy object in his hand gazing at it. "This thing is like... a scale from reptilian skin." Sam paused in his thought, staring ahead at his rideable cock. He knew where it was from. Sam lifted a section of his cock that had been curved ahead, in order to get a good look at the underside. It was covered in scales.

The hallway looked small with his massive shaft filling most of the space. That was him. That's how big he was. Sam needed more. He gave the curve in his cock's posture another push, and within a second he was moving again. Down the hall. Another squirt of pre. Through the other entry into the living room again. Another squirt of pre. "It's so SMOOTH. IT'S SO...."

Orgasm. Sam passed out.


"So where should I move?" Sam pushed himself up the stairs with his penis. "Where WOULD I move?" Through the laundry room, the shaft squeezing around through the tight space. "A new house?" The the next room. Then the next. Then Sam's own room. Sam lifted his body up using his cock's hefty muscles, and placed himself comfortably back on the couch in his room. "A new belonging?" Sam sighed in exhausted relief, gazing upon the precum coated massive shaft that had just pulled and slithered him all over the house, ending up finally in his room. "I need this." Sam placed his hand once again on the thick mass that jutted out from his crotch, feeling the thick but soft skin, looking so much like it belonged under a horse. "I need to be myself, wherever I end up. This is me. This is the truth. This is my future." He gave the muscles another pulse, his flare visibly expanding and contracting. Sam had been in tears for most of the day overwhelmed with both physical pleasure and the daunting mystery of what was next in his life.

"Where can I be me? Where can I just... do this? Do this every day. Grow. Explore. I'm so big. I can surf and ride and climb anything! I'm like a naga. A cock naga." Sam gazed into the barely furnished room. "need freedom." He whispered, alone.

Suddenly Sam's smartphone made it's loud notification sound, as if trying to slap him back to a different reality. He lazily reached for it.

"Notification from Messenger: Hi. My name is Casey. I read your story. I was hoping I could chat with you soon. Thank you."

Sam stared at his phone as if to re-read the message, but he understood it the first time. Sam could barely think about how to feel, but a smile still came across his face. "this person read my story..... and they want to talk about it!?" Is this a joke?"

"Well hello, Casey." Sam spoke back to no-one, unlocking his phone.


"Another day at the shitty office, wooo!" Sam yelled in the parking lot as he walked toward the entrance. After two days of intense self control practice, his lavithan horsecock was back to its "normal" size and smoothness, thickly coiled around his right leg, hanging down to his ankle. Sam had spent the remaining part of his weekend cleaning the pile of cum covered scales and snakeskin that his horseshaft shedded away from the underside as it shrank. "Another day. More intense and productive work for this place I care fucking nothing about." Sam waited for the elevator. "Am I supposed to be proud of this career? Lead sysadmin for some boring property management firm?" The elevator opened. Sam entered and pressed the button for the top floor office. As the door closed, Sam found the words echoing in his head. "Property... management... firm..."

He arrived at his workstation and sat down, giving his leg a nice hugging pulse from his coiled horseshaft while he waited for the terminal to log in. Finally, the screen stared back at him with a database administrator prompt.

Sam pulled out his smartphone. It unlocked, opening right back to the thread with Casey. Sam typed a new message. "Casey... I have an idea."